This Water Sensor Module is a great little device that uses the conductivity of water to measure how wet the conductive lines are, and is capable of not only reading water level according to the resistance in the circuit, but can also measure the size of drops and droplets within a system.

The module is Arduino-compatible, and can easily be integrated into an Arduino Based project, which can help with water-refilling automation or simply provide important insights into how a system is working. In one example, Sensors like this could be installed into a container to measure how high the water level is by measuring the resistance of the circuit on the module. In another example, it could be installed into a pipe or even on a window-sill, where drops or droplets can land on the circuit and essentially short-circuit the resistance lanes.

Both of these examples use the same basic premise, which is a decrease in resistance as the water forms connections higher up on the high-resistance circuit. With your Arduino Board or Sensor Shield, you can then connect this up to other components to automatically refill a container, or even raise the blinds or similar rain-shielding.

Technical Specifications:

Operating Voltage

– 5V DC

Working Current

– <20mA

Sensor Type

– Analog

Detection Area

– 40 x 16mm

Mounting Hole Size

– 3mm

Safe Operating Temperature

– 10°C to 30°C

Typical Applications for the Water Sensor Module:

This Arduino-compatible Water Sensor Module is a great choice for projects in which you need to monitor or measure the amount of water in a container, but can also be used to simply measure when water is present in areas like window-sills or within pipes. Using the natural conductivity of water and variable resistance over the circuit, it is capable of not only measuring water levels, but also the size of water droplets touching or passing by. This can be used in a range of different automation projects, or can simply offer extra insight into how a system works.

Why Should You Buy from DIYElectronics?

At DIYElectronics, our team of engineers are completely committed to supporting and developing the Open-Source movement and corresponding communities in South Africa. We offer complete support for all products purchased from us, and we are more than capable of giving full support throughout the product lifespan via our extremely helpful and responsive Support Desk.Additionally, all of our 3D printers come with a 6-month warranty on all parts during normal use, and we always make sure to stock every possible replacement part. This way, you can rest assured that you will never be left with a 3D printer, Arduino, Raspberry Pi or any other product that isn't working.